---
title: Querying features
description: Performing advanced queries on a Feature Layer. Click on the map to query for features within 500 meters. More information about Feature Layers can be found in the <a href="../api-reference/layers/feature-layer.html">L.esri.FeatureLayer</a> documentation.
layout: example.hbs
---

<div id="map"></div>

<script>
  var map = L.map('map').setView([45.526, -122.667], 15);

  L.esri.basemapLayer('Streets').addTo(map);
  var stops = L.esri.featureLayer({
    url: 'https://services.arcgis.com/rOo16HdIMeOBI4Mb/arcgis/rest/services/Trimet_Transit_Stops/FeatureServer/0',
    pointToLayer: function (geojson, latlng) {
      return L.circleMarker(latlng);
    },
    style:{
      color: '#5B7CBA',
      weight: 2,
      opacity: 0.85,
      fillOpacity: 0.5
    }
  }).addTo(map);

  var previousIds = [];

  map.on('click', function(e){
    stops.query().nearby(e.latlng, 500).ids(function(error, ids){
      for (var j = 0; j < previousIds.length; j++) {
        stops.resetStyle(previousIds[j]);
      }

      previousIds = ids;

      for (var i = 0; i < ids.length; i++) {
        stops.setFeatureStyle(ids[i], {
          color: '#BA454E',
          weight: 2,
          opacity: 0.85,
          fillOpacity: 0.5
        });
      }
    });
  });
</script>
